Kazushi Mukaiyama
This library for Akita Sound module. very personal.
AkitaSM.cpp@0:934392476bd5, 2010-10-29 (annotated)
- Committer:
- kazushi2008
- Date:
- Fri Oct 29 02:22:14 2010 +0000
- Revision:
- 0:934392476bd5
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| kazushi2008 | 0:934392476bd5 | 1 | /** |
| kazushi2008 | 0:934392476bd5 | 2 | * ... |
| kazushi2008 | 0:934392476bd5 | 3 | * @author Kazushi Mukaiyama |
| kazushi2008 | 0:934392476bd5 | 4 | */ |
| kazushi2008 | 0:934392476bd5 | 5 | |
| kazushi2008 | 0:934392476bd5 | 6 | #include "AkitaSM.h" |
| kazushi2008 | 0:934392476bd5 | 7 | #include "mbed.h" |
| kazushi2008 | 0:934392476bd5 | 8 | |
| kazushi2008 | 0:934392476bd5 | 9 | #define AKITA_AICTRL0 0x0C // Current song number / Song change |
| kazushi2008 | 0:934392476bd5 | 10 | #define AKITA_AICTRL1 0x0D // Number of songs on MMC |
| kazushi2008 | 0:934392476bd5 | 11 | #define AKITA_AICTRL2 0x0E // Number of songs on MMC (VS1103b) |
| kazushi2008 | 0:934392476bd5 | 12 | #define AKITA_AICTRL3 0x0F // Play mode |
| kazushi2008 | 0:934392476bd5 | 13 | |
| kazushi2008 | 0:934392476bd5 | 14 | AkitaSM::AkitaSM(int addr, PinName sda, PinName scl) |
| kazushi2008 | 0:934392476bd5 | 15 | : _i2c(sda, scl) { |
| kazushi2008 | 0:934392476bd5 | 16 | |
| kazushi2008 | 0:934392476bd5 | 17 | _addr = addr<<1; |
| kazushi2008 | 0:934392476bd5 | 18 | |
| kazushi2008 | 0:934392476bd5 | 19 | // Set up the i2c interface |
| kazushi2008 | 0:934392476bd5 | 20 | //_i2c.frequency(1000000); |
| kazushi2008 | 0:934392476bd5 | 21 | } |
| kazushi2008 | 0:934392476bd5 | 22 | |
| kazushi2008 | 0:934392476bd5 | 23 | void AkitaSM::play(int index, bool loop) |
| kazushi2008 | 0:934392476bd5 | 24 | { |
| kazushi2008 | 0:934392476bd5 | 25 | char p = 0; |
| kazushi2008 | 0:934392476bd5 | 26 | if(loop) p = 1; else p = 3; |
| kazushi2008 | 0:934392476bd5 | 27 | _cmd[0] = AKITA_AICTRL3; |
| kazushi2008 | 0:934392476bd5 | 28 | _cmd[1] = 0; |
| kazushi2008 | 0:934392476bd5 | 29 | _cmd[2] = p << 1; |
| kazushi2008 | 0:934392476bd5 | 30 | _i2c.write(_addr, _cmd, 3); |
| kazushi2008 | 0:934392476bd5 | 31 | wait(0.01); |
| kazushi2008 | 0:934392476bd5 | 32 | int n = 0x8000 + index; |
| kazushi2008 | 0:934392476bd5 | 33 | _cmd[0] = AKITA_AICTRL0; |
| kazushi2008 | 0:934392476bd5 | 34 | _cmd[1] = (n >> 8) & 0xFF; |
| kazushi2008 | 0:934392476bd5 | 35 | _cmd[2] = n & 0xFF; |
| kazushi2008 | 0:934392476bd5 | 36 | _i2c.write(_addr, _cmd, 3); |
| kazushi2008 | 0:934392476bd5 | 37 | //_cmd[0] = index & 0xFF; |
| kazushi2008 | 0:934392476bd5 | 38 | //_i2c.write(_addr, _cmd, 1); |
| kazushi2008 | 0:934392476bd5 | 39 | } |
| kazushi2008 | 0:934392476bd5 | 40 | |
| kazushi2008 | 0:934392476bd5 | 41 | void AkitaSM::stop() |
| kazushi2008 | 0:934392476bd5 | 42 | { |
| kazushi2008 | 0:934392476bd5 | 43 | _cmd[0] = AKITA_AICTRL3; |
| kazushi2008 | 0:934392476bd5 | 44 | _cmd[1] = 0; |
| kazushi2008 | 0:934392476bd5 | 45 | _cmd[2] = 1<<4; |
| kazushi2008 | 0:934392476bd5 | 46 | _i2c.write(_addr, _cmd, 3); |
| kazushi2008 | 0:934392476bd5 | 47 | } |
| kazushi2008 | 0:934392476bd5 | 48 | |
| kazushi2008 | 0:934392476bd5 | 49 | void AkitaSM::control(char r, int cmd) |
| kazushi2008 | 0:934392476bd5 | 50 | { |
| kazushi2008 | 0:934392476bd5 | 51 | //r is resistor 0x00-0x0f |
| kazushi2008 | 0:934392476bd5 | 52 | _cmd[0] = r; |
| kazushi2008 | 0:934392476bd5 | 53 | _cmd[1] = (cmd >> 8) & 0xFF; |
| kazushi2008 | 0:934392476bd5 | 54 | _cmd[2] = cmd & 0xFF; |
| kazushi2008 | 0:934392476bd5 | 55 | _i2c.write(_addr, _cmd, 3); |
| kazushi2008 | 0:934392476bd5 | 56 | } |
| kazushi2008 | 0:934392476bd5 | 57 | |
| kazushi2008 | 0:934392476bd5 | 58 | char* AkitaSM::isPlaying() |
| kazushi2008 | 0:934392476bd5 | 59 | { |
| kazushi2008 | 0:934392476bd5 | 60 | //_i2c.read(_addr, _cmd, 4); |
| kazushi2008 | 0:934392476bd5 | 61 | _i2c.read(_addr, _cmd, 4); |
| kazushi2008 | 0:934392476bd5 | 62 | return _cmd; |
| kazushi2008 | 0:934392476bd5 | 63 | } |